近十年来,多种传染病肆虐全球。有些病原体属于人类新近发现,也有些已发现数十年,未予重视,新的流行引起了人们的关注。SARS的研究已经很多,不再赘述,仅对其他几种加以简单介绍。1 禽流感病毒感染 流感病毒发生于禽类,称为禽流感。禽流感病毒广泛存在于世界上许多家禽和野禽中。一般情况下,禽流感病毒不能直接传播给人。但1997年,我国香港特区首次发现禽流感病毒感 In the past decade, many kinds of infectious diseases have been raging around the world. Some pathogens are newly discovered by human beings, and some have been discovered for decades and are not valued. The new epidemic has drawn people’s attention. SARS has been a lot of research, not repeat them, only a few other brief introduction. 1 Bird flu virus infection The flu virus occurs in the bird, known as the bird flu. The bird flu virus is widespread in many poultry and wild birds in the world. Under normal circumstances, the bird flu virus can not be transmitted directly to people. However, in 1997, Hong Kong SAR discovered for the first time a bird flu virus